classes/db.php

   1 <?php
   2 class Db implements IDb {
   3         private static $instance;
   4         private $adapter;
   5
   6         private function __construct() {
   7                 switch (DB_TYPE) {
   8                 case "mysql":
   9                         $this->adapter = new Db_Mysql();
  10                         break;
  11                 case "pgsql":
  12                         $this->adapter = new Db_Pgsql();
  13                         break;
  14                 default:
  15                         die("Unknown DB_TYPE: " . DB_TYPE);
  16                 }
  17
  18                 $this->adapter->connect(DB_HOST, DB_USER, DB_PASS, DB_NAME, DB_PORT);
  19                 $this->adapter->init();
  20         }
  21
  22         private function __clone() {
  23                 //
  24         }
  25
  26         public static function get() {
  27                 if (self::$instance == null)
  28                         self::$instance = new self();
  29
  30                 return self::$instance;
  31         }
  32
  33         static function quote($str){
  34                 return("'$str'");
  35         }
  36
  37         function init() {
  38                 //
  39         }
  40
  41         function connect($host, $user, $pass, $db, $port) {
  42                 //return $this->adapter->connect($host, $user, $pass, $db, $port);
  43         }
  44
  45         function escape_string($s, $strip_tags = true) {
  46                 return $this->adapter->escape_string($s, $strip_tags);
  47         }
  48
  49         function query($query, $die_on_error = true) {
  50                 return $this->adapter->query($query, $die_on_error);
  51         }
  52
  53         function fetch_assoc($result) {
  54                 return $this->adapter->fetch_assoc($result);
  55         }
  56
  57         function num_rows($result) {
  58                 return $this->adapter->num_rows($result);
  59         }
  60
  61         function fetch_result($result, $row, $param) {
  62                 return $this->adapter->fetch_result($result, $row, $param);
  63         }
  64
  65         function close() {
  66                 return $this->adapter->close();
  67         }
  68
  69         function affected_rows($result) {
  70                 return $this->adapter->affected_rows($result);
  71         }
  72
  73         function last_error() {
  74                 return $this->adapter->last_error();
  75         }
  76
  77 }
  78 ?>